Shutter device for door and door

The door shutter device automatically shields gaps around doors by using a swinging mechanism that responds to the door's position, addressing the issue of forgotten locks and preventing noise and odor leakage.

JP2025063839APending Publication Date: 2025-04-16BEST CO LTD
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Patent Information

Application Number
JP2024165181
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-10-04
Filing Date
2024-09-24
Publication Date
2025-04-16

AI Technical Summary

Technical Problem

Existing door shutter devices fail to automatically shield gaps around doors when forgotten, leading to inconvenience and potential issues with noise and odor leakage.

Method used

A door shutter device with a shield, a rocking body that changes position by swinging, a slide body that contacts the rocking body, and an abutment body that abuts against a wave stop, allowing the device to automatically open and close the gap based on the door's position.

Benefits of technology

The device eliminates the inconvenience of forgotten locks by automatically opening and closing the gap as the door is opened or closed, effectively preventing noise and odor leakage.

✦ Generated by Eureka AI based on patent content.

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Abstract

To eliminate inconveniences caused by forgetting to lock a door.SOLUTION: A shutter device for a door of the present invention is a shutter device for a door that shields a gap around the door, and comprises a shielding body that shields the gap, a swinging body that is locked into the shielding body and changes the position of the shielding body by swinging, a slide body that contacts the swinging body and allows the swinging body to swing, and an abutting body that abuts onto a vibration stopper installed on a movement path of the door, and the slide body and the abutting body are connected so that they are interlocked. A door of the present invention comprises the shutter device for a door of the present invention as a shutter device for a door that shields a gap around the door.SELECTED DRAWING: Figure 1
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Description

[Technical field]

[0001] The present invention relates to a door shutter device that seals gaps that occur around a door, and a door equipped with the door shutter device. [Background technology]

[0002] In private rooms such as toilets, ventilation must be ensured for hygienic reasons, and there is a need to ensure that there is a gap around the door when it is closed. On the other hand, many people are concerned about the noise and odors that are generated when the door is in use, and there is a demand for the sound and odors to not leak out through the gaps around the door.

[0003] In light of these circumstances, prior to filing this application, the applicant developed and obtained a patent for a door shutter device that can seal off any gaps that occur between a door and a floor surface as necessary (Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 6655315 Summary of the Invention [Problem to be solved by the invention]

[0005] In the door shutter device described in Patent Document 1, locking and unlocking operations are required to open and close the gap between the door and the floor, and if the lock is forgotten, the gap cannot be sealed, leaving room for improvement in this regard.

[0006] The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a door shutter device that can eliminate the inconvenience caused by forgetting to lock a door, and a door equipped with the door shutter device. [Means for solving the problem]

[0007] [Door shutter device] The door shutter device of the present invention is a door shutter device that covers gaps that occur around a door and is provided with a shield that covers the gap, a swinging body that engages with the shield and changes the position of the shield by swinging, a sliding body that comes into contact with the swinging body to swing the swinging body, and an abutment body that abuts against a vibration stopper installed on the door's moving path, and the sliding body and the abutment body are connected so as to move in conjunction with each other.

[0008] The door shutter device of the present invention can also be configured to include a shutter case having a first storage section and a second storage section formed therein, with a swinging body, a sliding body and a shielding body being arranged in the first storage section, and a contact body being arranged in the second storage section.

[0009] The abutment body of the door shutter device of the present invention may also comprise a fixed member fixed to the shutter case, a movable member slidable along the fixed member, and a rotating member rotatably engaged with both the fixed member and the movable member.

[0010] The pivoting member of the door shutter device of the present invention may be configured to pivot in one direction of the door movement from the reference position, but not to pivot in the other direction of the door movement from the reference position.

[0011] The rotating member of the door shutter device of the present invention can also be engaged with the fixed member and the movable member so as to be movable up and down.

[0012] In the door shutter device of the present invention, when the abutment body abuts against the vibration rest, the abutment body and the slide body move, causing the swinging body to swing, and the shielding body can be lowered by the swinging of the swinging body.

[0013] [door] The door of the present invention is provided with the door shutter device of the present invention as a door shutter device that covers gaps occurring around the door. Effect of the Invention

[0014] According to the present invention, the gap can be opened and closed simply by opening and closing the door, thereby eliminating the inconvenience caused by forgetting to lock the door. [Brief description of the drawings]

[0015] [Figure 1] (a) shows a state in which a door equipped with a door shutter device is in a fully open position, and (b) shows a state in which a door equipped with a door shutter device is in a fully closed position. [Diagram 2] (a) is an explanatory diagram of the shield with the door open, and (b) is an explanatory diagram of the shield with the door closed. [Diagram 3] FIG. 2A is an exploded perspective view showing an example of a door shutter device, FIG. 2B is an enlarged explanatory view of a sliding body, and FIG. 2C is an enlarged explanatory view of a contact body. [Figure 4] 4(a) to (c) are diagrams illustrating the operation of the door shutter device of FIG. [Diagram 5] FIG. 4 is an exploded perspective view showing another example of a door shutter device. [Figure 6] (a) is a schematic diagram of a single sliding door, and (b) is a schematic diagram of a retractable door. [Figure 7] 13(a) and (b) are explanatory diagrams of the procedure for hanging a door equipped with a door shutter device. [Figure 8] 13(a) and (b) are explanatory diagrams of the procedure for hanging a door equipped with a door shutter device. [Figure 9] 13(a) and (b) are explanatory diagrams of the procedure for hanging a door equipped with a door shutter device. [Figure 10] 13(a) and (b) are explanatory diagrams of the procedure for removing a door equipped with a door shutter device. [Figure 11] 13(a) and (b) are explanatory diagrams of the procedure for removing a door equipped with a door shutter device. [Figure 12] 13A shows a state in which a door equipped with a modified door shutter device is in a fully open position, and FIG. 13B shows a state in which a door equipped with a modified door shutter device is in a fully closed position. [Figure 13] (a) is an explanatory diagram of the shield with the door open, and (b) is an explanatory diagram of the shield with the door closed. [Figure 14]4A is an exploded perspective view showing another example of a door shutter device, FIG. 4B is an enlarged explanatory view of a sliding body, and FIG. 4C is an enlarged explanatory view of a contact body. [Figure 15] FIG. 11 is an explanatory diagram showing another example of the oscillator. [Figure 16] 15(a) to (c) are diagrams illustrating the operation of the door shutter device of FIG. 14(a). [Figure 17] 15(a) and (b) are diagrams illustrating the operation of the door shutter device of FIG. 14(a). [Figure 18] 15(a) to (c) are diagrams illustrating the operation of the door shutter device of FIG. 14(a). [Figure 19] 15(a) and (b) are diagrams illustrating the operation of the door shutter device of FIG. 14(a). DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] (Embodiment 1) DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will now be described with reference to the drawings. As shown in Fig. 1(a) and (b), a door shutter device 10 of the present invention is mounted on a door D for use.

[0017] The door shutter device 10 of the present invention is configured so that when the door D is open, as shown in Figure 2(a), the gap below the door D is open, and when the door D is closed, as shown in Figure 2(b), the gap below the door D is sealed.

[0018] Although the door shutter device 10 of the present invention can also be applied to a hinged door, the door shutter device 10 will be described here as being applied to a sliding door as an example.

[0019] As shown in FIG. 3(a), the door shutter device 10 of this embodiment includes a shutter case 11, a shielding body 12, a swinging body 13, a shutter guide 14, a sliding body 15, a contact body 16, a connector 17, and a shutter cap 18.

[0020] The shutter case 11 is a long member that houses the shielding body 12, the swinging body 13, the sliding body 15, etc. The shutter case 11 in this embodiment is a downward U-shaped member having opposing surfaces 11a and 11b, and the shielding body 12 enters and exits through the opening on the lower side.

[0021] The inside of the shutter case 11 is divided into a first storage section 11d and a second storage section 11e by a partition plate 11c parallel to the opposing surfaces 11a, 11b. The first storage section 11d contains a shielding body 12, a swinging body 13, and a sliding body 15, and the second storage section 11e contains a contact body 16.

[0022] The shield 12 is a member that shields the gap under the door D. The shield 12 in this embodiment includes a shutter body 12a that is long in the width direction of the door D, and a seal material 12b provided on the lower surface side of the shutter body 12a.

[0023] The seal material 12b can be made of various elastic materials such as rubber, silicon, etc. In this embodiment, the seal material 12b is a member having a length approximately equal to that of the shutter body 12a, and is provided so that its lower end protrudes downward beyond the lower end of the shutter body 12a.

[0024] A swinging body 13 for raising and lowering the shutter body 12a (changing the position of the shutter body 12a) is engaged with the shutter body 12a. The swinging body 13 is a member for changing the position of the shielding body 12 in the up-down direction by swinging.

[0025] In this embodiment, the oscillator 13 is a horizontally elongated member with an upper edge formed into a mountain shape, and has an abutment portion 13a at one longitudinal end against which the slide body 15 abuts, and a locking protrusion 13b at the other end for locking with a part of the shutter main body 12a.

[0026] A rocking body holder 13c is attached to the top of the rocking body 13. The rocking body 13 held by the rocking body holder 13c is attached to the inside of the shutter case 11 by a rocking body fastener 13d so as to be capable of rocking.

[0027] A shutter guide 14 for moving the shutter body 12a horizontally up and down is provided on the outer side of the locking projection 13b of the swinging body 13 of the shutter body 12a. A guide holder 14a is attached to the top of the shutter guide 14. The shutter guide 14 held by the guide holder 14a is attached inside the shutter case 11 by a guide fastener 14b.

[0028] The slide body 15 is a member that comes into contact with the contact portion 13a of the rocking body 13 to rock the rocking body 13 (contacts the rocking body 13 to adjust the amount of rocking of the rocking body 13). The slide body 15 in this embodiment includes a slider 15a, a coil spring 15b, and a holder 15c.

[0029] As shown in Fig. 3(b), the slider 15a in this embodiment is a block-shaped member having an inclined surface 15d on one end side. A mounting shaft 15e is protruding from the slider 15a at a position opposite to the inclined surface 15d, and a coil spring 15b is provided so as to cover the mounting shaft 15e.

[0030] The other end of the coil spring 15b is inserted into an insertion hole 15f of the holder 15c together with the mounting shaft 15e, and is thereby held by the holder 15c. The holder 15c is screwed to a connector 17 disposed on the outer upper surface of the shutter case 11. The coil spring 15b is biased in the extension direction, and the slider 15a is biased in the direction approaching the swinging body 13 by the biasing force.

[0031] The contact body 16 is a member that contacts a vibration stopper P installed on the moving path of the door D. As shown in Fig. 3(c), the contact body 16 in this embodiment includes a fixed member 16a fixed to the shutter case 11, a movable member 16b that is slidable along the fixed member 16a, and a rotating member 16c that is rotatably engaged with both the fixed member 16a and the movable member 16b.

[0032] The fixed member 16a is a member having a fixed member block portion 16e on the top of a horizontally long fixed member thin plate portion 16d, and is screwed to the shutter case 11. The fixed member thin plate portion 16d is formed with an inverted V-shaped guide hole 16f having a continuous horizontal portion and an inclined portion. The guide hole 16f is a portion that engages with a first locking projection 16g of the rotating member 16c.

[0033] The movable member 16b is a member that has a movable member block portion 16i on the top of a horizontally long movable member thin plate portion 16h. The movable member 16b is screwed to a connector 17 that is arranged on the outer upper surface of the shutter case 11. The movable member thin plate portion 16h is provided with a long hole 16j that is long in the vertical direction. The long hole 16j is a portion that engages with a second locking protrusion 16k of the rotating member 16c, which will be described later.

[0034] The rotating member 16c is a vertically long rod-like member with both ends chamfered into an arc shape. A first locking projection 16g is provided on the surface of the rotating member 16c facing the fixed member 16a, and a second locking projection 16k is provided on the surface facing the movable member 16b. The rotating member 16c is rotatably held between the fixed member 16a and the movable member 16b with the first locking projection 16g fitted in the guide hole 16f and the second locking projection 16k fitted in the long hole 16j.

[0035] The rotating member 16c can rotate with the first locking projection 16g accommodated in the guide hole 16f and the second locking projection 16k accommodated in the long hole 16j, but with the vertical state of the rotating member 16c as the reference position, it rotates in one direction of the movement of the door D but does not rotate in the other direction of the movement of the door D. Specifically, it rotates in the direction in which the door D closes (the door leading side) but does not rotate in the direction in which the door D opens (the door trailing side).

[0036] In the example shown in FIG. 3(a), the slider 15a and the movable member 16b are connected by a connector 17 arranged on the outer upper surface of the shutter case 11, so that when either the slider 15a or the movable member 16b moves, the other moves in the same direction (in tandem).

[0037] One longitudinal end side of the shutter case 11 in which the above-mentioned members are housed is closed by a shutter cap 18. The door shutter device 10 of this embodiment is used by being fixed to a door D by fasteners such as screws.

[0038] In this embodiment, the movable member 16b and the slider 15a are connected by the connector 17, but they can be connected by other methods. For example, a connector can be provided on both or either one of the movable member 16b and the slider 15a (integrated with the connector), and the two can be connected by the connector. In this case, the connector 17 can be omitted.

[0039] (Operation of the Door Shutter Device of the First Embodiment) Next, a description will be given of the operation of the door shutter device 10 of the embodiment 1. Here, the description will be divided into an operation when closing the gap under the door D and an operation when opening the gap under the door D.

[0040] -How to cover the gap under the door- First, the operation of covering the gap under the door D will be described. (1) Figure 4(a) shows the state in which the door D is open. In this state, the contact portion 13a of the rocking body 13 is in contact with the inclined surface 15d of the slider 15a and supported horizontally, and the shielding body 12 is housed within the shutter case 11. (2) Fig. 4(b) shows a state in which the door D is moved in the closing direction from the state (1) above, and the rotating member 16c of the abutment body 16 abuts against the vibration stopper P. In this state, as in the state (1) above, the abutment part 13a of the swinging body 13 abuts against the inclined surface 15d of the slider 15a and is supported horizontally, and the shielding body 12 is accommodated within the shutter case 11. (3) Fig. 4(c) shows the state where door D is moved further in the closing direction from the state of (2) above and door D is closed. In this state, the movable member 16b of the abutting body 16 abutting against the steady stop P moves toward the door end, and with this movement, the abutting part 13a side of the rocking body 13 rises along the inclined surface 15d of the slider 15a and the locking protrusion 13b side lowers. As the locking protrusion 13b side of the rocking body 13 lowers, the shielding body 12 lowers to the lowest part and the gap under door D is shielded.

[0041] -How to open the gap under the door- Next, the operation when opening the gap below the door D will be described. When the door D is opened from a state in which the gap below the door D is covered, the rotating member 16c separates from the anti-sway P, and the slider 15a slides toward the door end due to the biasing force of the coil spring 15b. When the slider 15a slides toward the door end, the contact portion 13a side of the swinging body 13 is pushed down (the locking projection 13b side is lifted), and the shielding body 12 is lifted to open the gap below the door D. The movable member 16b moves in the same direction as the slider 15a slides toward the door end, and returns to its original position.

[0042] (Embodiment 2) In the above embodiment, the contact body 16 includes a fixed member 16a, a movable member 16b, and a rotating member 16c, but the contact body 16 can also be configured with only a member (hereinafter referred to as "movable body") 19 equivalent to the movable member 16b, as shown in Fig. 5. The movable body 19 is provided with a protrusion 19a that comes into contact with the steady rest P.

[0043] As in embodiment 1, the movable body 19 is connected to the slider 15a by a connector 17, and when the convex portion 19a of the movable body 19 abuts against the anti-sway P and the movable body 19 moves toward the end of the door, the slider 15a moves in the same direction (in tandem) in conjunction with the movement.

[0044] The movable body 19 and the slider 15a may be connected by a connecting means provided on either or both of them (integral configuration with the connecting tool). In this case, the connecting tool 17 may be omitted.

[0045] In the first embodiment, only one end of the shutter case 11 in the longitudinal direction is closed by the shutter cap 18, but in this embodiment, both ends of the shutter case 11 in the longitudinal direction are closed by the shutter cap 18. The other configurations of the second embodiment are similar to those of the first embodiment, and therefore will not be described.

[0046] (Operation of the door shutter device of the second embodiment) Next, a description will be given of the operation of the door shutter device 10 of the embodiment 2. As in the case of the embodiment 1, the description will be divided into an operation for blocking the gap under the door D and an operation for opening the gap under the door D.

[0047] -How to cover the gap under the door- In the door D equipped with the door shutter device 10 of this embodiment, when the door D is moved in the closing direction, the convex portion 19a of the movable body 19 abuts against the anti-sway P, and the slider 15a moves to the door end side. When the slider 15a moves to the door end side, the abutment portion 13a side of the swing body 13 rises along the inclined surface 15d of the slider 15a, and the locking protrusion 13b side drops, and the shielding body 12 drops to the lowest part and shields the gap under the door D.

[0048] -How to open the gap under the door- When the door D is opened with the gap below the door D sealed, the protrusion 19a of the movable body 19 separates from the anti-sway P, and the slider 15a slides toward the door edge due to the biasing force of the coil spring 15b. When the slider 15a slides toward the door edge, the contact part 13a side of the swing body 13 is pushed down (the locking protrusion 13b side is lifted), the shielding body 12 is lifted, and the gap below the door D is opened.

[0049] It should be noted that there are two types of door D: a single sliding door type as shown in FIG. 6(a) and a retractable door type as shown in FIG. 6(b). The door D equipped with the door shutter device 10 of embodiment 1 can be used as either the single sliding door type or the retractable door type.

[0050] When the door D equipped with the door shutter device 10 of the embodiment 1 is used as a sliding door type, it is necessary to avoid the vibration stopper P installed on the movement path of the door D when hanging or removing the door D.

[0051] Hereinafter, the procedure for hanging the door D equipped with the door shutter device 10 of embodiment 1 will be described with reference to Figs. 7(a)(b) and 8(a)(b), and the procedure for removing the hung door D will be described with reference to Figs. 9(a)(b) to 11(a)(b).

[0052] - Door installation procedure - First, the procedure for hanging the door D will be described. (1) Figure 7(a) shows the state before the door D is hung. When hanging the door D, the door is positioned so that the anti-sway P provided on the moving path fits into the second storage section 11e (Figure 3(a)) of the shutter case 11. At this time, the door D is inclined so that the door edge side is positioned in front (toward the worker). (2) Figure 7 (b) shows a state in which the door end side of the door D is inserted into the door receiving portion S from the state (1) above. In this state, the sway stopper P is received in the second receiving portion 11e of the shutter case 11. (3) Figure 8 (a) shows the state where the door edge side of the door D is further inserted into the door receiving portion S from the state (2) above. In this state, the rotating member 16c of the abutment body 16 abuts against the sway stopper P and rotates in the direction to overcome the sway stopper P. (4) Figure 8 (b) shows the state where the door edge side of the door D is further inserted into the door receiving portion S from the state of (3) above. In this state, the rotating member 16c of the abutting body 16 climbs over the anti-sway P and returns to the original vertical state. This completes the hanging of the door D.

[0053] -Procedure for removing the door- Next, the procedure for removing the suspended door D will be described. (1) Figure 9(a) shows a state in which the door D is fitted into the door fitting portion S. In this state, the rotating member 16c of the abutting body 16 is located at the bottom, and the second locking projection 16k of the rotating member 16c locked in the long hole 16j is located at the bottom of the long hole 16j. (2) Figure 9(b) shows a state in which the door D is moved in the closing direction from the state in (1) above, and the rotating member 16c of the abutment body 16 abuts against the vibration stopper P. Even in this state, the rotating member 16c of the abutment body 16 is located at the lowest position, and the second locking projection 16k of the rotating member 16c locked in the long hole 16j is located at the lowest position of the long hole 16j. (3) Figure 10(a) shows the state where the door D has been further moved in the closing direction from the state (2) above. In this state, the rotating member 16c and the movable member 16b of the abutting body have moved to the door end side, and the first locking protrusion 16g of the rotating member 16c is located at the part where the guide hole 16f switches from the horizontal part to the inclined part. (4) Figure 10(b) shows a state in which the door D has been further moved in the closing direction from the state (3) above. In this state, the first locking protrusion 16g of the rotating member 16c is guided along the inclined portion of the guide hole 16f, and the rotating member 16c rises along the long hole 16j. (5) Figure 11 (a) shows the state where the door D has been further moved in the closing direction from the state (4) above. In this state, the first locking projection 16g of the rotating member 16c is guided along the inclined portion of the guide hole 16f, and the rotating member 16c further rises along the long hole 16j and rides up onto the steady stop P. (6) Fig. 11(b) shows the state in which the door D is further moved in the closing direction from the state of (5) above while tilting so that the door edge side faces the front (the operator side), and the door D is pulled out of the door receiving part S. In this state, the rotating member 16c climbs over the anti-sway P and descends, and the first locking protrusion 16g descends the inclined part of the guide hole 16f and moves to the horizontal part, and with this movement, the movable member 16b and the slider 15a move toward the door edge side. At this time, the inclined surface 15d of the slider 15a abuts against the abutment part 13a of the swinging body 13, the swinging body 13 is made horizontal, and the shielding body 12 fits inside the shutter case 11.

[0054] The configurations of the above-mentioned embodiments are merely examples, and the configurations of the door shutter device 10 of the present invention and the door D equipped with the door shutter device 10 are not limited to those of the above-mentioned embodiments. The configurations of the door shutter device 10 of the present invention and the door D equipped with the door shutter device 10 can be modified, such as by adding, replacing, or omitting components, as appropriate, within the scope of achieving the intended purpose, and the following modified examples are conceivable.

[0055] (Modification) The basic structure of this modified example is similar to that of the above-described embodiments 1 and 2. The differences are in the structures of the sliding body 15 and the contact body 16, and the structure of the oscillator 13. In the following, the description of the same parts as those of embodiments 1 and 2 will be omitted, and the description will focus on the different parts.

[0056] Fig. 12(a) shows a state where the door D equipped with the door shutter device of the modified example is in a fully open position, and Fig. 12(b) shows a state where the door D equipped with the door shutter device of the modified example is in a fully closed position. Fig. 13(a) is an explanatory diagram of the shielding body 12 in a state where the door D is open, and Fig. 13(b) is an explanatory diagram of the shielding body 12 in a state where the door D is closed.

[0057] As shown in FIGS. 14(a) and 14(b), the sliding body 15 of this modification includes a slider 15a, but does not include components corresponding to the coil spring 15b and the holding body 15c in the first embodiment.

[0058] The slider 15a of this modified example includes a block-shaped base portion 15g and a protruding portion 15h protruding from the tip side of the base portion 15g. A screw hole 15i used for connecting to a connector 17 is provided on the upper surface of the base portion 15g.

[0059] The protruding portion 15h is a portion that comes into contact with a rocker roller 13e (described later) provided on one end side of the rocker 13 to rock the rocker 13. The protruding portion 15h is a thin rod-like member that is thinner than the base portion 15g, and its bottom surface is provided with a horizontal contact surface 15j that comes into contact with the rocker roller 13e.

[0060] As shown in Figures 14(a) and (c), the abutment body 16 of this modified example includes a fixed member 16a fixed to the shutter case 11, a movable member 16b connected to the sliding body 15 via a connector 17 arranged on the outer upper surface of the shutter case 11, and a rotating member 16c rotatably connected to the movable member 16b.

[0061] The fixed member 16a is an L-shaped block with a tall part and a short part when viewed from the front. A screw hole 16m used for fixing the fixed member 16a to the shutter case 11 is provided on the upper surface of the tall part, and a roller contact surface 16n that contacts a rotating member roller 16w (described later) of the rotating member 16c is provided on the end surface of the short part.

[0062] The movable member 16b has a horizontally elongated block portion 16p that is long in the longitudinal direction of the shutter case 11, and a plate-shaped portion 16q provided on the lower side of the horizontally elongated block portion 16p. A running roller 16r that abuts against the ceiling surface of the shutter case 11 is provided at the end (corner) of the horizontally elongated block portion 16p on the door tail side, and a screw hole 16s used for connecting to the connector 17 is provided on the upper surface.

[0063] The plate-like portion 16q is generally square in front view, and is provided with a sector-shaped opening 16t in a portion thereof. A single elastic pin (elastic member) 16u having spring properties is provided protruding from the inside of the opening 16t at a position that roughly bisects the opening 16t.

[0064] The elastic pin 16u is a member that elastically deforms only toward the door end side, and elastically deforms toward the door end side when the rotating member 16c rotates in the rising direction. This elastic pin 16u plays a role in causing the rotating member 16c in the raised state to fall (return to the fallen state). As long as it plays a similar role, other elastic members such as springs can be used instead of the elastic pin 16u. It does not matter whether the elastic member is integrated with the movable member 16b or is separate.

[0065] The rotating member 16c is rotatably connected to the plate-shaped portion 16q by two connecting pins 20. Of the two connecting pins 20, the upper connecting pin (hereinafter referred to as the "upper connecting pin 20a") is disposed within the opening 16t and comes into contact with the elastic pin 16u when the rotating member 16c rotates in the rising direction.

[0066] Specifically, when the rotating member 16c rotates in the rising direction, the elastic pin 16u is pushed toward the end of the door and elastically deformed. The rotating member 16c, which has risen to a predetermined angle, rotates in the falling direction due to the spring force of the elastically deformed elastic pin 16u and the weight of the rotating member 16c.

[0067] The rotating member 16c is a member that is generally U-shaped when viewed from the front and has a recessed portion 16v in which the vibration stopper P is accommodated. A rotating member roller 16w that abuts against the roller abutment surface 16n of the fixed member 16a is provided at the end of the rotating member 16c on the door tip side. When the closed door D is opened, the rotating member roller 16w abuts against the roller abutment surface 16n of the fixed member 16a and travels upward along the roller abutment surface 16n.

[0068] As in embodiments 1 and 2, the slider 15a and the movable member 16b are connected by a connector 17 arranged on the outer upper surface of the shutter case 11, so that when either the slider 15a or the movable member 16b moves, the other moves in the same direction (in tandem).

[0069] The movable member 16b and the slider 15a can be connected by other methods. For example, a connecting means can be provided on both or either one of the movable member 16b and the slider 15a (integral configuration of the connecting tool), and the two can be connected by the connecting means. In this case, the connecting tool 17 can be omitted.

[0070] The oscillator 13 is a member that raises and lowers the shutter body 12a by oscillation (changes the position of the shutter body 12a). As shown in Fig. 15, the oscillator 13 of this embodiment is a member that is L-shaped when viewed from the front and has an upper side formed in a mountain shape. The oscillator 13 of this modification is shorter than the oscillator 13 of the first and second embodiments.

[0071] A rocker roller 13e against which the slider 15a abuts is provided at the end of the rocker 13 on the trailing edge side. Also, a locking protrusion 13b that locks onto a part of the shutter body 12a is provided at the leading edge side of the rocker 13.

[0072] Similar to the first and second embodiments, a rocker holder 13c is attached to the rocker 13 of this modification. The rocker 13 held by the rocker holder 13c is attached to the shutter case 11 by a rocker fastener 13d so as to be capable of rocking.

[0073] Unlike the first and second embodiments, in this modification, the oscillator holder 13c is attached at a position that divides the oscillator 13 in half at a ratio of about 1:3. Specifically, the ratio of the distance from the end face of the oscillator 13 on the slider 15a side to the oscillator holder 13c to the distance from the end face on the other end side of the oscillator 13 to the oscillator holder 13c is set to about 1:3. This numerical value is an example, and other values ​​may be used.

[0074] A concave-shaped accommodation recess 13f is provided on the upper surface of the short side portion of the oscillator 13, and an oscillator damper 13g that expands and contracts in the vertical direction is provided in the accommodation recess 13f. The oscillator damper 13g is a braking component that is driven by air. The oscillator damper 13g has a cylinder tube 13h portion accommodated in the accommodation recess 13f, and the tip of the rod 13i is fixed to the shutter case 11.

[0075] By providing the oscillator damper 13g, the descent speed of the oscillator 13 and the shield 12 engaged therewith can be controlled, specifically, the oscillator 13 and the shield 12 can be slowly lowered. This makes it possible to suppress problems that occur when the shield 12 descends too quickly (for example, wear of the seal material 12b caused by the shield 12 moving while in contact with the floor, or damage caused by impact when dropped, etc.).

[0076] (Operation of the door shutter device of the modified example) Next, the operation of the door shutter device 10 of the modified example will be described. Here, the operation when closing the gap under the door D and the operation when opening the gap under the door D will be described separately.

[0077] -How to cover the gap under the door- First, the operation of covering the gap under the door D will be described. 16(a) shows a state before the door D is completely closed. In this state, the rocking body 13 is supported horizontally by the slider 15a, and the shielding body 12 is housed within the shutter case 11. (2) Figure 16 (b) shows the state in which the door D is further moved in the closing direction from the state (1) above, and the rotating member 16c abuts against the vibration stopper P. Even in this state, the rocking body 13 is supported horizontally by the slider 15a, and the shielding body 12 is housed within the shutter case 11. (3) Figure 16(c) shows the state in which the door D is further moved in the closing direction from the state in (2) above, and the tip of the rotating member 16c rides onto the top of the steady stop P. Even in this state, the swinging body 13 is supported horizontally by the slider 15a, and the shielding body 12 is housed within the shutter case 11. In the state of Figure 16(c), the elastic pin 16u is pushed by the upper connecting pin 20a and is elastically deformed in the door tail direction. (4) Figure 17(a) shows the state in which the door D is further moved in the closing direction from the state in (3) above, and the tip of the rotating member 16c passes over the top of the vibration stopper P. Even in this state, the swinging body 13 is supported horizontally by the slider 15a, and the shielding body 12 is housed within the shutter case 11. In the state of Figure 17(a), the rotating member 16c starts to rotate in the falling direction due to the return force (spring force) of the elastic pin 16u and the weight of the rotating member 16c. (5) Fig. 17(b) shows the state in which the door D is further moved in the closing direction from the state in (4) above, and the anti-sway P is fitted into the recessed portion 16v of the rotating member 16c. The state in Fig. 17(b) is realized when the rotating member 16c is completely lowered by the spring force of the elastic pin 16u. When the anti-sway P is fitted into the recessed portion 16v, the slider 15a separates from the rocker 13, and the locking protrusion 13b side of the rocker 13 lowers. This causes the shielding body 12 to lower to the bottom, and the gap under the door D is shielded. When the shielding body 12 lowers (when the rocker roller 13e side rises), the rocker damper 13g is compressed, so the shielding body 12 does not lower forcefully, but slowly.

[0078] -How to open the gap under the door- Next, the operation for opening the gap under the door D will be described. (1) Figure 18(a) shows a state in which the door D is closed. In this state, the slider 15a is separated from the swinging body 13, and the gap below the door D is blocked by the shielding body 12. (2) Figure 18 (b) shows the state in which the door D is moved in the opening direction from the state (1) above, and the surface of the rotating member 16c on the side of the recessed portion 16v abuts against the steady stop P. In this state, the slider 15a is separated from the swinging body 13, and the gap under the door D is blocked by the shielding body 12. (3) Figure 18 (c) shows the state where the door D is further moved in the opening direction from the state (2) above, and the rocker 13 comes into contact with the slider 15a. In this state, the rocker roller 13e side of the rocker 13 is pushed down by the contact with the slider 15a, and the locking projection 13b side of the rocker 13 and the shielding body 12 locked thereto start to rise. (4) Figure 19 (a) shows the state where the door D is further moved in the opening direction from the state (3) above, and the rotary member roller 16w comes into contact with the fixed member 16a. In this state, the rocker roller 13e side of the rocker 13 is further pushed down by the contact with the slider 15a, and the locking projection 13b side of the rocker 13 and the shielding body 12 locked thereto are further lifted up. (5) Fig. 19(b) shows the state in which the door D is moved further in the opening direction from the state (4) above, and the pivot member roller 16w comes into contact with the roller contact surface 16n. In this state, the pivot roller 13e side of the pivot body 13 is pushed down by the contact with the slider 15a. As a result, the contact portion 13a side of the pivot body 13 is pushed down (the locking protrusion 13b side is lifted), the shielding body 12 is lifted, and the gap under the door D is opened. If the door D is moved further in the opening direction in this state, the pivot member 16c comes off the vibration stopper P and returns to the fallen state by the spring force of the elastic pin 16u and the weight of the pivot member 16c.

[0079] When using coil spring 15b as in the first embodiment, the resistance when opening door D is increased by the amount of coil spring 15b, and force is required to open door D. However, when a spring is not used as in this modified example, the resistance when opening door D is not increased, and door D can be opened easily.

[0080] Furthermore, when an oscillator damper 13g is provided on the oscillator 13 as in this modified example, the oscillation speed of the oscillator 13 and the descent speed of the shielding body 12 can be suppressed, so that the shielding body 12 descends at an early stage, and wear caused by contact with the floor can be avoided.

[0081] The embodiments and modifications disclosed in this application are merely examples and are not intended to provide a basis for limiting the scope of the present invention. The technical scope of the present invention is specified based on the claims. The technical scope of the present invention includes the equivalents of the claims. [Industrial Applicability]

[0082] The door shutter device 10 of the present invention can be mounted and used on various doors D that require switching between opening and closing the gap. [Explanation of symbols]

[0083] 10 Door shutter device 11 Shutter Case 11a, 11b Opposite surface 11c Partition 11d First Storage Section 11e Second storage section 12 Shield 12a Shutter body 12b Sealing material 13. Rocking Body 13a Contact part 13b Locking protrusion 13c Rocking body holder 13d Swing Clasp 13e Oscillating roller 13f Storage recess 13g Oscillator damper 13h Cylinder tube 13i Rod 14 Shutter Guide 14a Guide holder 14b Guide fastener 15 Slide body 15a Slider 15b coil spring 15c Holder 15d slope 15e Mounting shaft 15f Insertion hole 15g base part 15h protrusion 15i screw hole 15j Contact horizontal surface 16 Contact body 16a Fixing member 16b Movable parts 16c Rotating member 16d Thin plate part of fixing member 16e Fixing member block part 16f Guide hole 16g First locking protrusion 16h Movable part thin plate 16i Movable member block 16j long hole 16k Second locking protrusion 16m screw hole 16n Roller contact surface 16p Horizontal block section 16q Plate-shaped part 16r Travel roller 16s screw hole 16t aperture 16u Elastic pin 16v recess 16w Rotating member roller 17 Connectors 18 Shutter Cap 19 Movable body 19a Convex 20 Connecting pin 20a Upper connecting pin D Door P Steady rest S Door fitting part

Claims

1. A door shutter device that closes gaps around a door, A shield that shields the gap; a swinging body that is engaged with the shield and swings to change the position of the shield; a slider that contacts the rocking body to rock the rocking body; The door is provided with an abutment body that abuts against a swing stopper installed on the moving path of the door, The slide body and the abutment body are connected to each other so as to move in conjunction with each other. A door shutter device comprising:

2. The door shutter device according to claim 1, A shutter case is provided having a first storage section and a second storage section formed therein, A swinging body, a sliding body and a shielding body are disposed in the first housing portion, An abutment body is disposed in the second storage portion, A door shutter device comprising:

3. The door shutter device according to claim 1, The abutting body includes a fixed member fixed to the shutter case, a movable member connected to the sliding body via a connector disposed on the outer upper surface of the shutter case, and a rotating member rotatably connected to the movable member. A door shutter device comprising:

4. The door shutter device according to claim 3, The movable member is provided with an elastic member that rotates the rotating member, which has rotated in the rising direction, in the falling direction. A door shutter device comprising:

5. The door shutter device according to claim 1, The abutting body includes a fixed member fixed to the shutter case, a movable member slidable along the fixed member, and a rotating member rotatably engaged with both the fixed member and the movable member. A door shutter device comprising:

6. The door shutter device according to claim 5, The pivot member rotates from a reference position toward one side in the door movement direction, and does not rotate from the reference position toward the other side in the door movement direction. A door shutter device comprising:

7. The door shutter device according to claim 5, The rotating member is engaged with the fixed member and the movable member so as to be movable in the up and down direction. A door shutter device comprising:

8. The door shutter device according to claim 1, When the abutting body abuts against the vibration rest, the abutting body and the sliding body move, causing the swinging body to swing, and the shielding body descends due to the swinging of the swinging body. A door shutter device comprising:

9. The door shutter device according to claim 1, The rocker is provided with a rocker damper for controlling the rocking speed of the rocker and the descending speed of the shielding body engaged with the rocker. A door shutter device comprising:

10. In a door equipped with a door shutter device that closes gaps that occur around the door, The door shutter device is a door shutter device according to any one of claims 1 to 9. A door characterized by:

Citation Information

Patent Citations

  • Lower part clearance closing device of sliding door

    JP1997177446A

  • Door device

    JP1997250283A

  • Door shutter device

    JP6655315B2